package data;

import java.beans.PropertyChangeListener;

public interface PropertyChangeSpeaker {
	/**
	 * Adds a listener to this object
	 * @param listener Object that will listen.
	 */
	public void addPropertyChangeListener(PropertyChangeListener listener);

	/**
	 * Removes a listener from this object
	 * @param listener Object that will stop listening.
	 */
	public void removePropertyChangeListener(PropertyChangeListener listener);
	
}
